Apportioning Patent Rights Can Be a Tricky Business

  • January 3, 2020
  • Category: Patent Litigation Feature
    Market Sector: Semiconductors

As RPX reported last year, the Federal Circuit revived two lawsuits brought by Lone Star Silicon Innovations LLC (Lone Star), one each against Nanya Technology and UMC, remanding back to the Northern District of California for District Judge William Alsup to consider the feasibility of adding AMD, the owner of the asserted patents, to those cases. After remand, Lone Star and UMC settled, but Nanya has not. Rather, Nanya filed a motion to dismiss Lone Star’s amended complaint—which named AMD as a defendant after AMD refused to join the lawsuit as a coplaintiff—this motion to dismiss challenging Lone Star’s status to stand in a plaintiff’s shoes with respect to these patents at all.


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